Home / 156,240.92-215,611.26-84,620.72

Finding the Fourth Proportional to 156,240.92, 215,611.26 and 84,620.72

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Solution

The fourth proportional to 156,240.92, 215,611.26 and 84,620.72 is: 116,775.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,240.92 : 215,611.26 = 84,620.72 : x
  2. Step 2: Convert to fraction form
    156,240.92/215,611.26 = 84,620.72/x
  3. Step 3: Cross multiply
    156,240.92x = 215,611.26 × 84,620.72
  4. Step 4: Simplify right side
    156,240.92x = 18,245,180,061.31
  5. Step 5: Solve for x
    x = 18,245,180,061.31/156,240.92
  6. Step 6: Final answer
    x = 116,775.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.